It's a hot day and I want to learn swimming, but I'm wondering if I won't be able to swim because of the pressure of my forehead filler if I get forehead filler . I don't think silicone bristles will work at all... and urethane and cloth bristles won't work either. Those of you who have had forehead filler, please leave a comment~~~ Has anyone had any side effects, such as marks or the filler being pushed back ?